Gage-cock



(No Model.) v E ROBINSON.

Gage 000k.

No. 242,223. Patented May 31, 1 88].

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WITNESSES lNVfiNTOR (5 i620 fiMl l Ldgq/ W 7%; ATTORNEY N. PETERS. Pqlolm nphlr, WnNnglon. D) C.

UNITED STATES PATENT ()FFI'CE.

EDGAR ROBINSON, OF COLUMBUS, OHIO.

GAGE-COCK.

SPECIFICATION formingpart of Letters Patent No. 242,223, dated May 31, 1881.

Application filed October 23. 1880.

To all whom it may concern:

Be it known that I, EDGAR ROBINSON, of Columbus, in the county ofFranklin and State of Ohio, have invented a new and valuable Improvement in Gage-Cocks; and I do hereby declare that the followin g is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, making a part of this specification, and to the letters and figures of reference marked thereon.

The figure of the drawing is a representation of a central longitudinal section of the invention.

This invention relates to cocks, either to be used for gaging or to carry steam, gas, 850., from one point to another.

The invention consists in the construction hereinafter specified.

In the annexed drawing, A is the cock-cylinder, having chamber a, outlet b, shoulder c, collar d, and screw-threaded at e e.

B is the valve-stem, having valve g, orifices h, h, tube a, handle P, and screw-threaded at r.

O is a cap, internally screw-threaded at s.

17 represents grooves around the valve-stem The valve stem B is inserted through the cylinder A until the valve 9 rests in its seat and orifice h is within chamber a, the gland C being in place, and the stem passed through the same and screwed through the cap 0 at e, and then the handle I? is placed on. The cock is then screwed into its seat at e. To open the cook the valve-stem is turned down by turning the handle-P, which opens the valveg and (No model.)

allows the steam to pass up through orifices h h, tube a, chamber a, and out at b.

The construction of this cock is such that if the same should be broken the pressure from below would keep the valve to its seat and prevent escape of steam, this result being facilitated by making the grooves win the stem. These grooves would cause the stem to break short off instead of bending, which might happen if the stem were without grooves, and such bending would jam the stem and prevent the valve from being moved to its seat. The orifice h is made close to the valve, so that no steam or moisture passes up along the valve stem, and hence all clogging is avoided.

This cock can be readily used to convey steam, water, or gas, as well as being used for a gage, by making a pipe-connection at the outlet 1).

What I claim is In a ga ge-cock, the combination, with the cylinder A, having chamber a, valve-seat e, and outlet 1), and the cap 0, screw-threaded at c and s, of the stem B, having screw-threadsr, tube a, orifices h h, and valve {1, and the handle P, all constructed and arranged for operation substantially as and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

EDGAR ROBINSON.

Witnesses:

R0131. H. GARDNER, H. H. DAvIs. 

